Is Surface Duo a Killer Gaming System?

Recently Microsoft released a video launching their upcoming Surface Duo phone/tablet thing. This video showed off a ton of really interesting use cases and features for the Duo, but there was one scene that went by rather quickly that most people didn't notice. In this video I break down this brief scene it seems to indicate at least a partial focus on gaming by Microsoft for Surface Duo.

What does this mean? What will the gaming experience be like on Duo? Let's talk it over.